Answer:
y=2x^2+1
Step-by-step explanation:
a quadratic equation has a x^2 term
Answer: 0.701
Step-by-step explanation:
Formula : 
, where 
significance level , 
Population standard deviation, n= sample size.
As per given, n= 22
Critical z- value for 90% confidence level : 
Then,
Hence , error bound (EBM) of the confidence interval with a 90% confidence level= ± 0.701
Answer:
x = 3, v = -8
Step-by-step explanation:
Substitute x.
[5 • = -73 - 11v]
Isolate v.
5 = -73 - 11v
v = -8
Substitute v.
x = 
x = 3
Answer:
8(5w - 2).
Step-by-step explanation:
40w - 16
The greatest common factor of the two terms is 8 so the product is:
8(5w - 2).
Answer:
5.2 seconds
Step-by-step explanation:
We want to determine the value of x when h(x) = 0
:
-16x^2 +83x + 4 = 0
:
use quadratic formula to determine the value for x
:
x = ( -83 + sqrt(83^2 - 4*(-16)*4) ) / (2*(-16) = −0.047753182
:
x = ( -83 - sqrt(83^2 - 4*(-16)*4) ) / (2*(-16) = 5.235253182
:
we want the positive value for x since time runs forward
:
the ball hung in the air for approx 5.2 seconds
